Below small answer you. An ordinary battery

Currently on the market used electric forklift battery is divided into three categories, ordinary batteries, dry charged batteries and maintenance-free batteries, then three batteries were what characteristic? Below small answer you.
An ordinary battery
Standard battery forklift is composed of lead plates and lead oxide, the electrolyte is an aqueous electric pallet jack solution of sulfuric acid. Its main advantage is that the voltage stability, cheap; drawback is the low specific energy (ie energy per kilogram of battery storage), life is short and routine maintenance frequently.
2, dry-charged battery
Its full name is dry charged lead-acid battery, its main feature is the negative plate has a higher storage ability, in a completely dry state, the resulting electricity can be saved in two years, when used, simply add the electrolysis fluid, etc. can be used over 20-30 minutes.
2, maintenance-free batteries
Maintenance-free batteries Counter-balance Stacker due to their advantages of structural electrolyte
consumption is very small, in the life of the basic need to add distilled water. It also has shock, high temperature, small size, low self-discharge characteristics. Battery life is generally twice the ordinary. Maintenance-free batteries on the market, there are two: the first one at the time of purchase disposable after use, do not need to add electrolyte maintenance (adding replenisher); another factory when the battery itself has added a good electrolyte and sealed users simply can not add supplementary liquid.